Mud
Mud is an earth dam located in Fresno County, California, built in 1919. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Mud
The primary purpose of Mud is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by James Irrigation District (public utility). It impounds the Fresno Slough.
The dam stands 14 feet tall and stretches 127 feet across, creates a reservoir covering 38 acres, and has a maximum storage capacity of 304 acre-feet. Completed in 1919, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/23/2025.
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Location
| State | California |
| County | Fresno |
| River/Stream | Fresno Slough |
| Coordinates | 36.56360, -120.16890 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 127 ft |
| Year Completed | 1919 (107 years old) |
Storage & Hydraulics
| NID Storage | 304 acre-ft |
| Max Storage | 304 acre-ft |
| Surface Area | 38 acres |
Ownership & Safety
| Purpose | Water Supply |
| Owner | James Irrigation District |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/23/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00913 |
| Federal ID | CA00913 |
| More Info | State Dam Safety Program |